Set-top box



FIG. 1 is a perspective view of a set-top box;

FIG. 2 is a front view of a set-top box;

FIG. 3 is a rear view of a set-top box;

FIG. 4 is a left side view of a set-top box;

FIG. 5 is a right side view of a set-top box;

FIG. 6 is a top view of a set-top box; and,

FIG. 7 is a bottom view of a set-top box. 

The ornamental design for a set-top box, as shown and described herein. 